* Initial commit after Spring Starter Wizard.
* Shortened class names.
* Added Docker files, probably not working, yet.
* Ignoring JAR files.
* Docker files work now.
* Fixed application start-up.
* Creating & querying customer.
* Simplified by removing "files" sub-folder for applicaton JAR file.
* Removed more unnecessary settings.
* Removed last "application.properties" setting since this is part of
the Docker Compose file.
* Final tweaking.
Karsten Silz